

package com.hazelcast.jet.impl.pipeline;

import com.hazelcast.jet.impl.pipeline.transform.Transform;
import com.hazelcast.jet.pipeline.GeneralStage;
import com.hazelcast.jet.pipeline.Pipeline;
import com.hazelcast.jet.pipeline.SinkStage;
import com.hazelcast.jet.pipeline.Stage;

import javax.annotation.Nonnull;

public abstract class AbstractStage implements Stage {

    final PipelineImpl pipelineImpl;
    final Transform transform;

    AbstractStage(Transform transform, PipelineImpl pipelineImpl) {
        this.transform = transform;
        this.pipelineImpl = pipelineImpl;
    }

    public static Transform transformOf(GeneralStage<?> stage) {
        return ((AbstractStage) stage).transform;
    }

    public static Transform transformOf(SinkStage stage) {
        return ((AbstractStage) stage).transform;
    }

    @Override
    public Pipeline getPipeline() {
        return pipelineImpl;
    }

    @Nonnull
    @Override
    public Stage setLocalParallelism(int localParallelism) {
        transform.localParallelism(localParallelism);
        return this;
    }

    @Nonnull
    @Override
    public Stage setName(@Nonnull String name) {
        transform.setName(name);
        return this;
    }

    @Nonnull
    @Override
    public String name() {
        return transform.name();
    }

    @Override
    public String toString() {
        return String.valueOf(transform);
    }
}
